(color online) Calculated scattering spectrum of graphene. The dashed lines represent calculated spectrum with incident frequencies of 901 cm⁻¹ (black), 930 cm⁻¹ (red), 950 cm⁻¹ (green), and 980 cm⁻¹ (blue), respectively. The solid lines are experimental W_Gra for dipole modes extracted from Fig. 2.